"She sent me a letter! I wrote her one back, too," Robb, told Us Weekly. "She was just very encouraging about it all. It was really cool!"

Robb is starring as a young Carrie Bradshaw in the new pilot based on Candace Bushnell's prequel young adult series to "Sex and the City," "The Carrie Diaries." Parker played the iconic role for six seasons on HBO and in two feature films. Parker, "Sex and the City" creator Darren Star are and former "SATC" showrunner Michael Patrick King are not involved with the new pilot.